A hood-less version of the classic Boreas Pull-on, the Ventus is a superb lightweight, stretchy & breathable soft shell....
A windshirt can be used as a mid or outer layer of clothing and is designed to stop wind from penetrating. Usually lightweight, windshirts are more breathable than most hard shell fabrics found on a waterproof jacket. They can protect from cold wind, light rain, sun and bugs.
Windshirts can be used in conjunction with a wicking base layer, adding warmth while hiking in cooler conditions or as it cools down at night in warmer weather.